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AMMONIUM SULPHATE |
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MOL.FORMULA: (NH4)2SO4 MOL.WT: 132.14 CAS NO. 7783-20-2 |
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DESCRIPTION:
COLOURLESS |
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GRADES |
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SPECIFICATION |
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IP |
BP |
USP |
ACS |
AR |
LR |
F.C.C |
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IDENTIFICATION |
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TO COMPLY |
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TO COMPLY |
TO COMPLY |
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CLARITY& COLOR OF SOLN |
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TO COMPLY |
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pH of 5% solution |
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5.0-6.0 |
5.0-6.0 |
MIN.4.5 |
4.4-5.4 |
4.5-6 |
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HEAVY METALS |
MAX |
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5PPM |
0.0002% |
20PPM |
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IRON |
MAX |
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5PPM |
5PPM |
0.0002% |
20PPM |
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RESIDUE ON IGNITION |
MAX |
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0.005% |
0.0005% |
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NON-VOLATILE IMPURITIES |
MAX |
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0.005% |
0.005% |
0.01% |
0.2% |
0.25% |
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ASSAY |
MIN |
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99.0-100.5% |
MIN.99.0% |
99.5%(ODB) |
98.5%(MIN) |
99.0-100.5% |
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INSOLUBLE MATTERS |
MAX |
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0.005% |
0.005% |
0.001% |
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NITRATES |
MAX |
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0.001% |
0.001% |
0.001% |
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PHOSPHATE |
MAX |
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5PPM |
5PPM |
0.0005% |
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ARSENIC |
MAX |
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0.00002% |
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Ca GROUP & Mg |
MAX |
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0.002% |
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LOSS ON DRYING AT 1000C |
MAX |
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0.1% |
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LEAD |
MAX |
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3PPM |
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CHLORIDE |
MAX |
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5 PPM |
5PPM |
0.0003% |
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SELENIUM |
MAX |
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0.003% |